After you save the game you can go to endurance or survival or creative and edit the map.
Make sure you have at least 2 crates to put the stuff you have in but keep the things you want to spawn with in your inventory. Make sure you have 1 or 2 safehouses in map. Make sure you have a diamond pick axe or bloodstone pick Then save the game. Go to creative, start the game with 1 or 2 players, walk 4000-5000 paces then you get to rock and lava and there will be gold, diamonds, and there will be holes in the ground where There will be bloodstone in there.
